The organ grinder and his monkey has been down in the Mercedes camp, with technical director Paddy Lowe leaving after three years with the dominant Mercedes F1 and returning to Williams F1.
Lowe, who joined Mercedes in 2013, is tipped for a leading role at Williams after chief technical officer Pat Symonds parted company with the British team last year.
It would mark Lowe’s second time at Williams following a six year stint with the team before a 20 year spell at McLaren prior to his Mercedes move.
“Paddy has played an important part in our success during the past three and a half years and we thank him for his contribution to this significant chapter in Mercedes motorsport history,” team boss Toto Wolff added.
Highly-rated British designer James Allison, who left Ferrari last August, is expected to replace Lowe at Mercedes.
“Success in Formula One is not about single individuals but about the strength in depth and technical capability of an organization.” Lowe was the recipient of Lewis Hamilton’s defiance at the end of 2016 when he refused to obey Lowe’s order during the final race of the year which gave Rosberg the world title.